Herpes? Or tear

So not sure if I have it or not. I had sex with this guy last weekend which hurt a lot. After he fingered me my entire vag was sore but went away. This week, the vaginal opening has been really sore and not getting that much better. It might be a tear but it’s like 2 or 3 open sores down there. At first it looked like someone poured acid down there. Kind of yellow and bloody now it’s pink like open sores. At times it hurts really bad, like can’t sit down bad and other times I can’t even feel it. I went to the doctor and she said she doesn’t think it’s herpes because the sores wouldn’t appear that fast and that if it doesn’t get better within a week or two to come back and we can test. Herpes usually appear at random times not the day after sex. Idk if its herpes or an infected vaginal tear. I’m going on a trip this weekend and I don’t want to be on pain during the trip. Should I go to the er for a second opinion?